kopia lustrzana https://github.com/openmaptiles/openmaptiles
45 wiersze
1.5 KiB
MySQL
45 wiersze
1.5 KiB
MySQL
|
CREATE TABLE IF NOT EXISTS state_label AS (
|
||
|
|
SELECT topoint(geom) AS geom,
|
||
|
|
name_local, fix_win1252_shp_encoding(name) AS name_en,
|
||
|
|
abbrev, postal,
|
||
|
|
scalerank, labelrank,
|
||
|
|
shape_area, datarank, type
|
||
|
|
FROM ne_10m_admin_1_states_provinces_shp
|
||
|
|
WHERE type IN ('State', 'Avtonomnyy Okrug', 'Sheng', 'Estado')
|
||
|
|
AND scalerank <= 3 AND labelrank <= 2
|
||
|
|
);
|
||
|
|
CREATE INDEX IF NOT EXISTS state_label_geom_idx ON state_label USING gist(geom);
|
||
|
|
|
||
|
|
CREATE OR REPLACE FUNCTION fix_win1252_shp_encoding(str TEXT) RETURNS TEXT
|
||
|
|
AS $$
|
||
|
|
BEGIN
|
||
|
|
RETURN convert_from(convert_to(str, 'WIN1252'), 'UTF-8');
|
||
|
|
EXCEPTION WHEN others THEN RETURN str;
|
||
|
|
END;
|
||
|
|
$$ LANGUAGE plpgsql IMMUTABLE;
|
||
|
|
|
||
|
|
CREATE OR REPLACE VIEW state_z3 AS (
|
||
|
|
SELECT * FROM state_label
|
||
|
|
WHERE (scalerank <= 2 AND labelrank <= 1) OR type = 'Avtonomnyy Okrug'
|
||
|
|
);
|
||
|
|
|
||
|
|
CREATE OR REPLACE VIEW state_z4 AS (
|
||
|
|
SELECT * FROM state_label
|
||
|
|
);
|
||
|
|
|
||
|
|
CREATE OR REPLACE FUNCTION layer_state(bbox geometry, zoom_level int)
|
||
|
|
RETURNS TABLE(geom geometry, name text, name_en text, abbrev text, postal text, scalerank int, labelrank int) AS $$
|
||
|
|
WITH zoom_levels AS (
|
||
|
|
SELECT * FROM state_z3
|
||
|
|
WHERE zoom_level = 3
|
||
|
|
UNION ALL
|
||
|
|
SELECT * FROM state_z4
|
||
|
|
WHERE zoom_level >= 4
|
||
|
|
)
|
||
|
|
SELECT geom,
|
||
|
|
COALESCE(name_local, name_en) AS name_local, name_en,
|
||
|
|
abbrev, postal, scalerank::int, labelrank::int FROM zoom_levels
|
||
|
|
WHERE geom && bbox
|
||
|
|
ORDER BY scalerank ASC, labelrank ASC, shape_area DESC;
|
||
|
|
$$ LANGUAGE SQL IMMUTABLE;
|